Perhaps you should try some spelling variations:
"international economic economic studies" » "international economics economic studies", "international economics economics studies", "international economies economic studies", "international economic economic status"
"international policy economy series" » "international poverty economy series", "international prices economy series", "national policy economy series", "international policy economic series", "international polish economy series", "international politics economy series", "international policy economics series"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("international policy economy series") or ("international economic economic studies"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international policy economy series") OR ("international economic economic studies")).
• Removing quotes may allow a broader search: (( international policy economy series ) or ( international economic economic studies )).
• Adding a wildcard symbol may retrieve word variants: (("international policy economy series") or ("international economic economic studies"))*.